BUB-1 and CENP-C recruit PLK-1 to control chromosome alignment and segregation during meiosis I in C. elegans oocytes
pmid: 37067150
pmc: PMC10156168
BUB-1 and CENP-C recruit PLK-1 to control chromosome alignment and segregation during meiosis I in C. elegans oocytes
Phosphorylation is a key post-translational modification that is utilised in many biological processes for the rapid and reversible regulation of protein localisation and activity. Polo-like kinase 1 (PLK-1) is essential for both mitotic and meiotic cell divisions, with key functions being conserved in eukaryotes. The roles and regulation of PLK-1 during mitosis have been well characterised. However, the discrete roles and regulation of PLK-1 during meiosis have remained obscure. Here, we used Caenorhabditis elegans oocytes to show that PLK-1 plays distinct roles in meiotic spindle assembly and/or stability, chromosome alignment and segregation, and polar body extrusion during meiosis I. Furthermore, by a combination of live imaging and biochemical analysis we identified the chromosomal recruitment mechanisms of PLK-1 during C. elegans oocyte meiosis. The spindle assembly checkpoint kinase BUB-1 directly recruits PLK-1 to the kinetochore and midbivalent while the chromosome arm population of PLK-1 depends on a direct interaction with the centromeric-associated protein CENP-CHCP-4. We found that perturbing both BUB-1 and CENP-CHCP-4 recruitment of PLK-1 leads to severe meiotic defects, resulting in highly aneuploid oocytes. Overall, our results shed light on the roles played by PLK-1 during oocyte meiosis and provide a mechanistic understanding of PLK-1 targeting to meiotic chromosomes.
- University of Edinburgh United Kingdom
- Ludwig Cancer Research United States
- University of Dundee United Kingdom
- Institute of Cancer Research United Kingdom
- Ludwig Cancer Research United Kingdom
QH301-705.5, Science, 610, 612, Spindle Apparatus, Protein Serine-Threonine Kinases, Polo-Like Kinase 1, Chromosome Segregation, meiosis, Animals, Biology (General), oocyte, Caenorhabditis elegans, Caenorhabditis elegans Proteins, Kinetochores, Q, R, Cell Biology, kinetochore, Meiosis, centromere, C. elegans, Oocytes, Medicine, PLK1
QH301-705.5, Science, 610, 612, Spindle Apparatus, Protein Serine-Threonine Kinases, Polo-Like Kinase 1, Chromosome Segregation, meiosis, Animals, Biology (General), oocyte, Caenorhabditis elegans, Caenorhabditis elegans Proteins, Kinetochores, Q, R, Cell Biology, kinetochore, Meiosis, centromere, C. elegans, Oocytes, Medicine, PLK1
7 Research products, page 1 of 1
- 2016IsAmongTopNSimilarDocuments
- 2020IsAmongTopNSimilarDocuments
- 2009IsAmongTopNSimilarDocuments
- 2014IsAmongTopNSimilarDocuments
- 2015IsAmongTopNSimilarDocuments
- 2019IsAmongTopNSimilarDocuments
- 2018IsAmongTopNSimilarDocuments
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).8 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10%
